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Heather and Daniel's teenage romance blossoms into a marriage. But with Daniel's twin brother always hanging around, passion turns to poison.

Manjit and Mukhtiar get married and set up a home together in suburbia. But fierce arguments soon turn their dreams into a nightmare.

When Lisa Stukey has not been seen or heard from for several weeks, Police find her decomposing body inside her home. The investigation leads to a shocking discovery.

Extremely popular teenager Kathy Chou goes missing in Washington, shocking everyone. Then, a surprising tip leads to police looking at those closest to her.

Dorian Bluford's family were anxious when he told them he was moving to live with a friend they did not know. Later, he is found brutally murdered.

The dismembered body of a missing woman turns up in trash bags. A detective's pursuit of the suspect prompts the question: Could this man be a serial killer.

When 16-year-old Becky Watts vanished without trace suspicions fell on her step-brother and his partner. Experts analyse police interviews for clues.

When April Barber was murdered at a remote beauty spot, her husband said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception.

An oil executive goes missing in front of his New Jersey home. Police fear a medical emergency until a ransom note arrives from an eco-terrorist organization.

Miami businessman Henry Diaz goes missing the night before a family vacation. His business success has earned him many enemies - even within his own family.

Relatives of serial con-woman and murderer, Sante Kimes, reveal how her shocking crimes impacted the family and what it was like having a relative with murder on her mind.

An unassuming teen disappears after becoming involved with an attractive young mum struggling in a difficult relationship. Where is he now and what is Misty hiding.

A lively slumber party in the town of McMinnville turns into a nightmare when a loving mother, her young daughter, and her daughter's friend, are murdered.

In Dunlap, Tennessee, a body is found on the banks of the river. Detectives piece together the unknown man's final moments to find the culprit.

A soldier dies in a brutal attack during a night out with her unit. Police determine if a secret fear she told her mum is the motive for her murder.

A wealthy man's seaside escape turns deadly, as love, deceit and betrayal expose a web of greed and ambition beneath the Mexican sun.

The town of Malden, Massachusetts, is outraged after a child attending a family-run day-care makes sexual abuse claims. The allegations build with more children coming forward.